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Frontiers in Environmental Science, 2022 Lakes are currently responsible for a significant amount of total natural methane emission. Microbial oxidation of methane plays a central role in Arctic carbon cycling, potentially reducing methane emissions from lakes, though little is known about ...
Sarah B. Cadieux +6 more
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Compiled records of carbon isotopes in atmospheric CO2 for historical simulations in CMIP6
, 2017 . The isotopic composition of carbon (Δ14C and δ13C) in atmospheric CO2 and in oceanic and terrestrial carbon reservoirs is influenced by anthropogenic emissions and by natural carbon exchanges, which can respond to and drive changes in climate ...
H. Graven +11 more
semanticscholar +1 more source
Centrifugal Separation of Carbon Isotopes Using Heptafluoropropane as Processing Gas
Journal of Isotopes, 2020 The demand for stable isotopes has increased in the field of medical diagnosis, biopharming, quantum communication and so on. Natural carbon has two stable isotopes: 12C (98.89%) and 13C (1.11%). 13C in high abundance is mainly used in tracer field.
SUN Qiming;JIAN Conghui;ZHOU Mingsheng;PEI Gen
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Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance Declining oxygen contents in today’s oceans highlight the need to better understand ancient, natural marine deoxygenation and associated extinctions.
T. Them +9 more
semanticscholar +1 more source
Ecosphere, 2021 Tracing the flow of dietary energy sources, especially in systems with a high degree of omnivory, is an ongoing challenge in ecology. In aquatic systems, one of the persistent challenges is in differentiating between autochthonous and allochthonous ...
Ariana M. Chiapella +2 more
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Research Progress on Spatiotemporal Distribution Characteristics of Carbon Stable Isotopes in Wines from New and Old World Countries [PDF]
Shipin Kexue, 2023 With the continuous development of economic globalization, the production and consumption of wine in New and Old World countries have shown a steady growth trend. Wines of different grades and styles have been developed, which are related to geographical
MA Yanfei, SU Yingyue, WANG Lishan, QI Pengyu, KANG Tianhao, WANG Li, MA Haiyan, XU Guoqian, ZHANG Ang
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Carbon isotope fractionation in plants [PDF]
Phytochemistry, 1981 The objectives of this research are: To develop a theoretical and experimental framework for understanding isotope fractionations in plants; and to develop methods for using this isotope fractionation for understanding the dynamics of CO{sub 2} fixation in plants. Progress is described.
openaire +4 more sources
Isotope Engineering of Carbon Nanotube Systems [PDF]
Physical Review Letters, 2005 4 pages, 4 ...
Jenő Kürti +7 more
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Food webs in forest and pasture streams in the Waikato region, New Zealand: A study based on analyses of stable isotopes of carbon and nitrogen, and fish gut contents. [PDF]
, 1997 Stable isotopes of carbon (C) and nitrogen (N) were studied in 11 stream communities in the Waikato region of New Zealand. From comparisons of mean d13C and d15N values, food webs in the shaded, forest streams were clearly based on allochthonous material
Biggs B., Lester P. J., Main M. L.
core +2 more sources
Hydroclimate variability from western Iberia (Portugal) during the Holocene: insights from a composite stalagmite isotope record [PDF]
, 2020 © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Thatcher, D. L., Wanamaker, A. D., Denniston, R. F., Asmerom, Y., Polyak, V.
Asmerom, Yemane +9 more
core +3 more sources